Tool.



J. F KYTLlCAi TOOL.

APPLICATHJN mm ma. 3:, ISIS.

Patented Aug. 6, 1918.

R m H. N

4 TTURNEY aet' the parts Jenn F. KYTLICA, OF CHICAGO, rumors.

e i ination filed January at, mm.

.X I J, i T 0 all whom It! may (ginger/ n:

Be it known that llt Jonx I. Inn-1.1m. a citizen of thelhitqtl States.rep-titling 1n the city of (,hidago. eizpnty 01' Cook. and State ofIllinois, have i ented certain newand useful Inqnoveme'nts in Tools. ofwhich the following is a s e ification. .This inventionfrelates toimprovements in a tool to .ba X's-ed for re-cutting valve- .seats, andit. (192; Ste in certain peculiarities of the eons-tin: etion. novelarrangement and operation ofj thevari'ons parts thereof. as fltbatlipafter nore fully eet fortluand specifically claimed. 5, v

The prlii-lpal objeet of the invention, 15, to provideta tool forre-entting valveeeats in an absolutely aeeurat and true manner, whielisl1 be extremel simple and inexpensive i conswic'tion. easily operated bya drill-p11. tsybece drill or otherwise, and which erspeeially adaptedfor reeutting the. valyb sjeats loeatcd in the. heads of engi'nes jntkwhieh is bvno means limited in its' oi ration to the location of sa dseats. Ano lei: object. of'the invention is to prooat/a ool of the abovenamed general eharof which can be adjusted ant itted with respect to oneanother. and witlifiaTspeet to the machine or part in which the valve.-eat is loeated, so as 't-O qliieltlv re-eut the eat to the desireddegree. tothe .end. that the valve will be seated tlwreinfin apo:-iti\'( true and aeeurate wa v.

A further ohjeet i; to provide a re eutting tool forh 'alve seats inwhich inter-change able parts may be used. llllla; rendering itapplicable for use'on valve seats of dill'erent eizes. as well as, wherevalve atenn: of-dili'erent sizes are employed. Various (it her objectsand mlvalntages oi the inventioii will be diselo ed in the. suhio-ineddeaeription and explanation. i

In the aeeompanylug drawing. whit-h serves to illustrate the invention:

Figure 1 a plan view of the tool. show.-

ing it mo nited on its supporting plate; I

.Fig. E2. is" :11- view partly in Section and partly in eievation.showing by (:lottedliues, .a cross-sectional view of an engine andone ofits valve chambers with the. tool in "full line s mounted transverselythereon, and by dotand dash lines. a longitudinal view of an engine, andthree of its valve chambers with the tool in full lines mounted longitndinally thereon;-

- 4 i "i Fig. 3 1s a (LQlltliihG'djIflW partly in section Specificationof Letters iat ent.

upper portion of the rod *threaded to enga e! the lower end of the oPatented Aug. 6, 1918.

Serial K011415523 and partly in elevation of the tool. with itssupporting bar or plate and 1t.-: adjuqiug eollar omitted. and

Fig. 4. is a detaehed inverted perspeetive view of the bit or cuttingtool of the deviee. ot-responding numerals of referenee refer to likeparts throughout the dill'erent.

views of the drawing;

heferring now to Figs. .1 and 2 of the drawing. the numeral 5.designates the eupporting bar or plate of the tool. whit-ll is providedwith a longitudinal slot 6. whivh extends from near one end thereof tonear its other end and has between its ends an enlarged opening T. inwhich is located an adjusting collar 8. which has an annular flange 9 onits upper portion to net on the uppe surface of the supporting bar. The.flange 9 has :1 depending pin 10 to fit in a suitable opening in thesupporting bar to prevent the collar turning thereon.- As

shown in Fig. '2. the eollar 8 has a downwtn dly tapered opening 11therethrongh to guide and center the downwardly tapered,

end 12 ofaninternally screw-threaded sleeve 13'. which is adjustablymounted on an externally sereW-tlileniled bit or cutting-tool carrier14. of any suitable .fiixe and length.

is provided with a longitudinal slot 15. and has on each side of saidslot an oritieed lug 16. which lugs are united by a serew bolt 17, H etlto tighten the sleeve on the member ll. if desired. The lower end of thehit earrier 14, provided with a vertical opening 17. which is preferablyenlarged at its lower portion and without threads. and alightleontraeted in its up per portion and internall serew-threiuled.lnterseeting: the opening: 17. is a transverse opening 18 for thereception of the bit or eutting tool ltt, whieh is provided at itsmiddle with an opening. 20. for the reeen tion of a rod 11 used for serui'iu .'l the hit 1!) in place. as well as. for assisting incentering, the tool in the valve ehamben The.

21 is screwerew-thi'eiuled portion at the opening 1,7, "mat below itssermv-lhreads the rod Q-I/is' provided with a beveled shonlde'r 22 to enage the flared enitig '20 in the bit. which may be of the or t-nary orany well-known COIlShllCtlOD. As shown 1n Fig. 2 of the drawing-thelower portion of the rod 21 islqcated in the vertieal opening 23; forthe valve'stem, which of cont-se must be removed the same, it is obviousthat the rod in t l. tightened or removed, and to permit this, the lowerend of said rod is provided wih means to turn the same, such as a groove24- for a screw-driver, which can be inserted in the lower end of theopening 23 as is obvious. The upper end of the carrier or member 14, isprovided with an angular extension 25 to which power may be applied forturning the tool, for instance, by means of a drill press or bracedrill. When there are a number of valve chambers 26, located in a row,as shown in Fig. 2, the supporting bar 5,can be placed longitudinallyabove the same on the engine and firmly held in place by means of bolts27 located in two of the openings 23 for the valve stems, and so thatthe tool can be adjusted and pro crly located to remit the valve seat 28oi the intervening val vc chamber or if desired, the bar can be placedtransversely on the engine (shown by dotted lines in Fig. 2) and securedthereon by the bolts 27 engaging a bar 29 located transversely below thevalve securely hold the bit in place or to remoye chamber being operatedon or re-cut by the? tool.

hen the parts are mounted in either of the above mentioned ways, it isapparent that by applying rotary motion to the carrier 14, all of theparts, except the collar 8, will be caused to rotate, in which operationthe bit 19 will cut the valve seat 28 away to the desired extent and ina.most rapid, accurate and satisfactory manner. It is further manifestthat the sleeve 13 can be adjusted with great nicety on the carrier 14,so as to regulate the cutting action of the bit 19 as de 'red, and thatthe tapered opening in the collzk ii and the rod 21 will properly centerthe t cl and maintain it in such position. Different sizes of rods 21and bits 19 can be used for difierent sized valve seats and openings forthe valve stems as is ob vious.

Having thus fully described my invention, what I claim asnew and desireto secure by Letters Patent is, i

1. In' a tool of the class described, the combination with a slottedsupportin bar having means to fix it across a valve 0 amber, of a collarlocated on said bar, a b t carrier- 'located for rotation in said collarand ada ted to extend into the valve chamher, a hit transversely mountedon said carrier, and means to center and adjust the carrier with respectto the collar and valve seat, said-means ineludin a rod detachablyconnected to the inner en of the bit carrier and extended therefrom inaxial alinement .lower end of the 1,274,? when the tool is being used.In order to herewith and adapted for location in the openings for thevalve shall-s.

2. In a tool of the class described, the combination with a slottedsupporting bar having means to fix it across the valve-chamber, of acollar located on said bar and having a downwardly tapered opening, abit carrier located for rotation in said collar and adapted to extendinto the valve chamber, a bit transversely mounted on said carrier, asleeve adjustably mounted on said carrier and having its lower enddownwardly tapered, and a rod detachably located in the carrier andextended throu h the bit.

3. na tool of the class described, the combination with a slottedsupporting bar having means to fix it across the valve-chamber, of acollar located on said bar and having a downwardly tapered opening. abit carrier located for rotation in the said collar and adaptedto extendinto the valvwchamber, a bit transversely mounted on said carrier andhaving a central opening flared ht its lower portion, a sleeveadjustablv mounted on the carrier and having its lower end downwardlytapered, a rod adjustably mounted in the lower end of the carrier andextended through the opening in the bit and having a beveled shoulder toengage the flared portion of the opening of said bit. I

:4. In a tool of the class described, the com bination with a slottedsupporting bar having means to fix it across a valve-chamber, of acollar located within said slot and fixed to said -bar and having adownwardly tapered opening, a bit carrier located for rotation in saidcollar and adapted to extend into the valve-chamber, a .bit transverselymounted on said carrier, and a rod detachably located in the lowernortion of the carrier and extended through an opening in the bit andhaving/means to engage the opening in the valve-chamber for the valvestem.

5. In a tool of the class described,khe combination with a supportingbar rovided with an opening therethrough and having means 'to fixitacross a valve chamber, of a collar locatedin said opening and havinga downwardly tapered opening, a bit carrier located for rotation in saidcollar and adapted to extend into the valve chamber a bittransverselvmounted on said carrier, aild a rod detachably located inthe lower portion of the carrier and engaging the bit and having meansto engage the opening Ill-the valve chamber for the valve stem.

JOHN KYTLICA,

Witnesses:

Guns. 0. TILLMAN, CEOILIA CASEY.

